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प्रश्न
Assertion: Colloidal solutions do not show brownian motion.
Reason: Brownian motion is responsible for stability of sols.
पर्याय
Assertion and reason both are correct and the reason is correct explanation of assertion.
Assertion and reason both are correct but reason does not explain assertion.
Assertion is correct but reason is incorrect.
Both assertion and reason are incorrect.
Assertion is incorrect but reason is correct.
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उत्तर
Assertion is incorrect but reason is correct.
Explanation:
Colloidal particle shows Brownian movement. The Brownian movement has a stirring effect which does not permit the particles to settle and thus, is responsible for the stability of sols.
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संबंधित प्रश्न
Define the following terms: Associated colloids
Out of MgCl2 and AlCl3, which one is more effective in causing coagulation of negatively charged sol and why?
Define the following term : Brownian movement
Explain what is observed when a beam of light is passed through a colloidal sol.
Explain what is observed when an electrolyte NaCl is added to hydrated ferric oxide sol.
Explain the term Electrophoresis
Explain the term Tyndall effect.
What happens when persistent dialysis of a colloidal solution is carried out?
The values of colligative properties of colloidal solution are of small order in comparison to those shown by true solutions of same concentration because of colloidal particles ______.
What causes brownian motion in colloidal dispersion?
Match the statement given in Column I with the phenomenon given in Column II.
| Column I | Column II |
| (i) Dispersion medium moves in an electric field | (a) Osmosis |
| (ii) Solvent molecules pass through semi permeable membrane towards solvent side |
(b) Electrophoresis |
| (iii) Movement of charged colloidal particles under the influence of applied electric potential towards oppositely charged electrodes |
(c) Electroosmosis |
| (iv) Solvent molecules pass through semi permeable membranes towards solution side |
(d) Reverse osmosis |
Assertion: Colloidal solutions show colligative properties.
Reason: Colloidal particles are large in size.
What is Gold number?
Tyndall effect is observed in
The important factor in the stabilization of a colloidal solution is ______
The right option for the statement “Tyndall effect is exhibited by”, is:
Coagulation value of the electrolytes AlCl3 and NaCl for As2S3 sol are 0.093 and 52 respectively. The No. of times AlCl3 has greater coagulating power than NaCl is ______.
